Help with puff pastry
I am making some puff pastry in a couple days. I was just wondering if someone could explain these instructions to me. I understand fully the mechanics of it, as I have made other puff pastry recipes several times. However, I do not understand shapes, and am absolutely awful at understanding instructions for making shapes.
The recipe says: "when the dough is three times as as long as it is wide, fold it like a business letter: fold the bottom third of the dough over the middle third, then fold the top third over so it meets the edge of the folded dough"
I have checked online tutorials on how to fold a business letter, but the pictures are not detailed enough. I still don't get it. Can someone explain this to me in the most detail possible, like I'm an imbecile (when it comes to understanding shapes, I actually am) so I can be 100% certain what this means?